Physician Profile
Based in San Francisco, CA, Michael Main, MD is listed in the NPI registry under allergy/immunology. Michael graduated from New York University School of Medicine in 2019. Michael is also listed as specializing in internal medicine.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Source: NPPES NPI Registry
45 CASTRO ST
San Francisco, CA 94114
Within Allergy and Immunology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Allergies
Digestive
Drug allergies
Drug allergy
Emergency
Environmental
Eye
Food allergies
Immune conditions
Immunology
Lung conditions
Respiratory
Sinus
Sinus conditions
Skin
Skin conditions
Most searched procedures
Allergy treatments
Diagnostic
Infusion
Medication therapy
Medications
Preventive
Respiratory
Tests
Treatment
23 services · 23 patients · 1 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
23 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Main is an allergy/immunology in San Francisco, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Dr. Main is listed at 45 Castro St, San Francisco, CA 94114. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (702) 882-5285. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Main's National Provider Identifier is 1649833005. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Main attended New York University School of Medicine, graduating in 2019. This comes from the CMS National Downloadable File.
CMS public data
Dr. Main has 7 years experience. Calculated from a graduation year of 2019, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Main the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Main. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.